https://bugs.kde.org/show_bug.cgi?id=464258
Bug ID: 464258
Summary: plasmashell crashed when hovering over task manager
icons with the error The Wayland connection
experienced a fatal error: Bad file descriptor
Classification: Plasma
Product: plasmashell
Version: 5.26.5
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: generic-crash
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
SUMMARY
I was using Plasma 5.26.5 on Wayland with a Fedora Rawhide KDE Plasma live
image Fedora-KDE-Live-x86_64-Rawhide-20230111.n.0.iso in a QEMU/KVM VM in GNOME
Boxes in a Fedora 37 KDE Plasma installation. I started Konsole from the menu.
I ran sudo dnf upgrade in Konsole. I hovered the cursor over the icons in the
task manager. plasmashell crashed when hovering over task manager icons
plasmashell might've crashed when the Konsole popup was shown. The task manager
disappeared and then reappeared automatically several seconds later. The
journal at the time of the crash showed plasmashell crashed with the error The
Wayland connection experienced a fatal error: Bad file descriptor and lines
like plasmashell[1531]: kpipewire_logging: Failed to query DMA-BUF formats.
Jan 13 17:50:14 plasmashell[1531]: trying to show an empty dialog
Jan 13 17:50:16 plasmashell[1531]: kpipewire_logging: Failed to query DMA-BUF
formats.
Jan 13 17:50:17 plasmashell[1531]: kpipewire_logging: Failed to query DMA-BUF
formats.
Jan 13 17:50:25 plasmashell[1531]: kpipewire_logging: Failed to query DMA-BUF
formats.
Jan 13 17:50:26 plasmashell[1531]: kpipewire_logging: Failed to query DMA-BUF
formats.
Jan 13 17:50:27 plasmashell[1531]: KCrash: Application 'plasmashell'
crashing...
Jan 13 17:50:27 plasmashell[1531]: The Wayland connection experienced a fatal
error: Bad file descriptor
Jan 13 17:50:28 systemd[1344]: plasma-plasmashell.service: Main process exited,
code=exited, status=1/FAILURE
Jan 13 17:50:28 systemd[1344]: plasma-plasmashell.service: Failed with result
'exit-code'.
Jan 13 17:50:28 systemd[1344]: plasma-plasmashell.service: Consumed 43.195s CPU
time.
Jan 13 17:50:28 systemd[1344]: plasma-plasmashell.service: Scheduled restart
job, restart counter is at 1.
Jan 13 17:50:28 systemd[1344]: Stopped plasma-plasmashell.service - KDE Plasma
Workspace.
Jan 13 17:50:28 systemd[1344]: plasma-plasmashell.service: Consumed 43.195s CPU
time.
Jan 13 17:50:28 systemd[1344]: Starting plasma-plasmashell.service - KDE Plasma
Workspace...
Jan 13 17:50:29 plasmashell[2722]: libEGL warning: egl: failed to create dri2
screen
Jan 13 17:50:29 systemd[1344]: Started plasma-plasmashell.service - KDE Plasma
Workspace.
drkonqi didn't appear. I'll try to reproduce the problem to get a trace with
gdb or valgrind.
STEPS TO REPRODUCE
1. Boot a Fedora 37 KDE Plasma installation
2. Log in to Plasma on Wayland
3. Download Fedora Rawhide KDE Plasma live image
Fedora-KDE-Live-x86_64-Rawhide-20230111.n.0.iso
https://koji.fedoraproject.org/koji/buildinfo?buildID=2109618
4. Install GNOME Boxes if it isn't already with sudo dnf install gnome-boxes
5. Start GNOME Boxes
6. Boot the Fedora Rawhide KDE Plasma live image
Fedora-KDE-Live-x86_64-Rawhide-20230111.n.0.iso in a QEMU/KVM VM in GNOME Boxes
7. start Konsole from the Application launcher menu.
8. hover the cursor back and forth over the icons including Konsole in the task
manager until the crash happens
OBSERVED RESULT
plasmashell crashed when hovering over task manager icons with the error The
Wayland connection experienced a fatal error: Bad file descriptor
EXPECTED RESULT
plasmashell wouldn't crash
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Rawhide/38
(available in About System)
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.8
ADDITIONAL INFORMATION
The way in which the crash happened was similar those crashes reported at
https://bugs.kde.org/show_bug.cgi?id=447717
However, the errors in the journal were different.
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